body {
  min-width: 320px;
  max-width: 750px;
  margin: 0 auto;
  background-color: #fff;
}
* {
  margin: 0;
  padding: 0;
  /* css3盒子模型 */
  box-sizing: border-box;
}
img {
  /* border 0 照顾低版本浏览器 如果 图片外面包含了链接会有边框的问题 */
  border: 0;
  /* 取消图片底侧有空白缝隙的问题 */
  vertical-align: middle;
}
button {
  /* 当我们鼠标经过button 按钮的时候，鼠标变成小手 */
  cursor: pointer;
}
button,
input {
  /* "\5B8B\4F53" 就是宋体的意思 这样浏览器兼容性比较好 */
  font-family: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
  /* 去掉蓝色边框 */
  outline: none;
}
em,
i {
  font-style: normal;
}
a {
  text-decoration: none;
  color: #707070;
}
@media screen and (min-width: 750px) {
  html {
    font-size: 37.5px !important;
  }
}
.header {
  overflow: hidden;
  position: relative;
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20rem;
  height: 3rem;
  line-height: 3rem ;
  background-image: linear-gradient(to right, #2abca5, #57c177, #76c456);
  background: url(../images/图片5.jpg) no-repeat;
  background-size: 100% 100%;
  z-index: 9999;
}
.header .date {
  position: absolute;
  right: 1rem;
  top: 1.95rem;
  width: 6.7rem;
  height: 1rem;
  font-size: 0.7rem;
  border: 1px solid #fff;
  color: #fff;
}
.header p {
  float: left;
  text-align: center;
  color: #fff;
  font-size: 0.7rem;
}
.header .pre {
  position: absolute;
  left: 7.5rem;
  top: 0.9rem;
  font-family: 'iconfont';
  content: '\e642';
  font-size: 0.9rem;
  color: #fff;
}
.header .next {
  position: absolute;
  left: 12.3rem;
  top: 0.9rem;
  font-family: 'iconfont';
  content: '\e61c';
  font-size: 1.05rem;
  color: #fff;
}
.header .logo {
  float: left;
  height: 3rem;
  margin-top: -0.3rem;
}
.header .logo a {
  display: block;
  width: 4.5rem;
  height: 1.5rem;
  margin-top: 0.933333rem;
  margin-left: 0.266667rem;
}
.header .logo a img {
  width: 100%;
  height: 100%;
}
.trader1 {
  margin-top: 2rem;
  width: 100%;
  height: 2rem;
}
.trader1 p {
  margin-top: 0.266667rem;
  padding-left: 1rem;
  font-size: 0.48rem;
  color: #616267;
}
.trader1 p input {
  padding-left: 0.133333rem;
  width: 80%;
  font-size: 0.48rem;
  border: 0;
}
.trader {
  margin-top: 2rem;
  margin-bottom: 1rem;
  width: 100%;
  height: 2rem;
}
.trader p {
  margin-top: 0.266667rem;
  padding-left: 1rem;
  font-size: 0.48rem;
  color: #616267;
}
.trader p input {
  padding-left: 0.133333rem;
  width: 80%;
  font-size: 0.48rem;
  border: 0;
}
.numbers {
  margin-top: 3.3rem;
  margin-left: 0.2rem;
  font-size: 0.533333rem;
}
.numbers p {
  float: left;
}
.numbers input {
  border: 0;
}
.numbers .date {
  float: left;
  margin-left: 0.533333rem;
  margin-top: -0.16rem;
  border: 1px solid black;
}
.numbers #demo {
  width: 6rem;
  margin-top: -0.5rem;
  margin-left: 0.2rem;
  padding-left: 1rem;
  border: 0.026667rem solid #ccc;
  border-radius: 0.1rem;
}
.numbers .header_search {
  width: 1.4rem;
  height: 0.8rem;
  line-height: 0.8rem;
  border: 0.026667rem solid #ccc;
  font-size: 0.5rem;
  background-color: #fff;
  border-radius: 0.1rem;
  cursor: pointer;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}
.nav .nav_header {
  height: 1.266667rem;
  line-height: 1.366667rem;
  width: 100%;
  border-bottom: 0.08rem solid green;
  background-color: #fff;
}
.nav .nav_header p {
  margin-top: 0.1rem;
  padding-left: 0.2rem;
  color: white;
  font-size: 0.64rem;
  width: 100%;
  background-color: #57c177;
  border-radius: 0.05rem;
}
.nav .item {
  display: flex;
  width: 50%;
  flex-direction: column;
  align-items: center;
  margin-bottom: 0.266667rem;
  border-bottom: 0.026667rem solid lightgray;
}
.nav .item img {
  display: block;
  width: 4.5rem;
  height: 4.5rem;
  margin-top: 0.3rem;
}
.nav .item span {
  padding: 0.266667rem;
  color: black;
  font-size: 0.933333rem;
}
.nav .item i {
  display: block;
  width: 3rem;
  padding: 0.133333rem;
  margin-bottom: 0.2rem;
  text-align: center;
  color: #fff;
  font-size: 0.426667rem;
  background-color: #57c177;
  border-radius: 0.153333rem;
  border: 0.026667rem solid #57c177;
}
.gap3 {
  height: 1.7rem;
}
.footer {
  overflow: hidden;
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20rem;
  height: 1rem;
  font-size: 0.4rem;
  text-align: center;
  line-height: 1rem;
  color: #fff;
  background-image: linear-gradient(to right, #2abca5, #57c177, #76c456);
  background: url(../images/footer.jpg) no-repeat;
  background-size: 100%;
}
